Hi guys. I'm new to the forums and new to mac's also. Currently I have an old HP PC (and by old - I mean a good 5 years) and recently got an iMac. I have my PC connected to the internet through a cable modem and I am attempting to connect my mac to the internet using a wireless router and a wireless usb adapter. The router is set up and running on my PC and my USB adapter is connected to my iMac, but when I go to put the CD in to install the adapter software - I can't open anything! I can't run the install and I have no idea what to do to get my mac up and running on the internet. I literally got my mac a few days ago and have had no experience on them whatsoever, so I'm grasping at straws trying to figure out what it is to do. Thanks for your time guys and thanks to anybody who takes the time to respond!